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Grok Bot+18 agentsInvoice Checker
Checks an invoice for arithmetic errors, missing fields and internal contradictions before it is sent or paid.
Free
Invoice Checker
Example session with this skill installed
Check this invoice before I send it: [invoice text].
- Read your context and instructions
- Compiled the invoice checker
Before: Re-adding an invoice by eye with a calculator, and sending it with the due date before the invoice date.
After (skill output, from a real test run): Test run on a sample invoice we wrote with planted errors. Result, unedited: "2 differences found. Line 2's total is wrong, and that error carries into every total below it." It showed 3 x 18.25 is 54.75 not 55.75, the corrected chain of subtotal, discount, VAT and total, the due date a month before the invoice date, and the missing invoice number, customer address, payment details and VAT number. It changed nothing and said which tax questions to ask an accountant.
Connects securely to your tools. The creator never sees your data.
About this skill
Checks an invoice for arithmetic errors, missing fields and internal contradictions before it is sent or paid. It recomputes every line, subtotal, discount, tax and total with a script or shown arithmetic, lists the fields a customer normally expects that are absent, and flags date, currency and rounding problems. It gives no tax advice. Use when someone has an invoice (their own to send, or one received) and says "check this invoice", "do the totals add up", "is anything missing", or pastes invoice lines.
Free and open source (MIT). Source and README: https://github.com/proskillpacks/skills/tree/main/skills/finance/invoice-checker All our free skills: https://github.com/proskillpacks/skills . More from Pro Skill Packs: https://proskillpacks.github.io
Every skill in the folder ships with prompt.md, a paste-in version for chatbots that cannot load skills.
How to use
Skills on Agensi run inside your AI agent. Copy the prompt, paste it into your agent, and it connects to Agensi and installs this skill for you. If a payment is needed, your agent shows it to you first.
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Requires
Node.js